Hanna Huisman Mr. Westman History of the Calculator February 18‚ 2013 The History of the Calculator Calculators are used daily by many Americans around the world. For me I used my calculator daily while I am participating in my Finical Algebra class. It not only is convenient for me to use to I am able to get equations more quickly and efficiently‚ but also it helps me see graphs that I have created with the equations given to us. "Calculators from Texas who?" That question was often asked
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JButton calculate; JButton clear; public RetailCalculator() { //set object variables super("Retail Sales Calculator"); //window title setSize(250‚ 250); //set window size setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //window close GridLayout grid = new GridLayout(7‚ 2); setLayout(grid); department = new JLabel("Department"); dept = new JComboBox(); dept.addItem("Select");
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Modern electronic calculators contain a keyboard with buttons for digits and arithmetical operations. Some even contain 00 and 000 buttons to make large numbers easier to enter. Most basic calculators assign only one digit or operation on each button. However‚ in more specific calculators‚ a button can perform multi-function working with key combination or current reckoning mode. Calculators usually have liquid crystal displays as output in place of historical vacuum fluorescent displays. See
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the input checking for valid numeric data before continuing. If the interest rate was entered in percentage form it converts to decimal before calculation process. The program then calculates the monthly payment. The values are displayed rounded to 2 decimal places. The output for the program is the user defined input values as well as the calculated monthly payment. All the input values are accepted from the keyboard. The program uses the following formula: [Payment = (InterestRate*LoanAmount/12)/(1
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Calculators are a way of doing mathematical equations when used correctly. They are also a useful tool in learning mathematics. The use of calculators have only had part in the benefit of education‚ and with widespread availability‚ a full range of sizes‚ and a price range for any budget there should be no excuse not to own a calculator or restrict the use of calculators. Current issues with calculators have to be dealt with in order to better understand the advantage of this technology‚ which is
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GUI Mortgage Calculator University of Phoenix David Silberberg POS 407 04-19-2005 Program /* * MortgageGui.java * Version 4 * Created on April 19‚ 2005 * Use a graphical interface to allow a user to input a principle amount‚ interest rate * and term of loan then calculate loan payment. * Added text field to show amortization of loan. Also checked for last payment equal to * less than monthly payment. Added in the ability to select a predefined interest rate * and term
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"/" button or using the keyboard "/" key. The function results in a/b. Sign The sign key (negative key) is used by clicking on the "(-)" button. The function results in -1*x. Square The square function is used by clicking on the "x^2" button or type "^2". The function results in x*x. Square Root The square root function is used by clicking on the "x" button or type "sqrt()". This function represents x^.5 where the result squared is equal to x. Raise to the Power The raise to the power
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to have a child‚ from birth until college‚ and my guess is that it is a whole lot more than I would ever expect. Let us just start out with the basic necessities‚ such as food and clothing. According to www.Babycenter.com’s "cost of a child calculator"‚ in 2007 for the average two-parent household with an income of $38‚000-$64‚000 a year food for one child would cost about $3‚276 a year‚ and that is
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November 2006 and that he was expecting the value of the shares to increase. Let’s imagine that Jim notices that the price fails to get above $39 several times over the past several months‚ even though it has gotten very close to moving above it. In this case‚ traders would call the price level near $39 a level of resistance. As you can see from the chart below‚ resistance levels are also regarded as a ceiling because these price levels prevent the market from moving prices upward. | Figure 1 |
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Case 2 Chem-Med Company 1. Net Sales Growth (all credit)=[(Current Year Net Sales-Last Year Net Sales)/Last Year Net Sales]X100 a. Sales Growth 2007=[(3814-3051)/3051]X100= 25% b. Using the same formula for the remaining years and the data in figure 1 of the pro forma section: 2008=40% c. 2009=40% d. 2010=40% 2. Net Income Growth=[(Current Year Net Income-Last Year Net Income)/Last Year Net Income]X100 e. Net income Growth 2007=[(1150-766)/766]X100=50%
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